EP1568301B1 - Appareil domestique de cuisson d'aliments sous pression muni d'un système de sécurité à l'ouverture - Google Patents

Appareil domestique de cuisson d'aliments sous pression muni d'un système de sécurité à l'ouverture Download PDF

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Publication number
EP1568301B1
EP1568301B1 EP05290433A EP05290433A EP1568301B1 EP 1568301 B1 EP1568301 B1 EP 1568301B1 EP 05290433 A EP05290433 A EP 05290433A EP 05290433 A EP05290433 A EP 05290433A EP 1568301 B1 EP1568301 B1 EP 1568301B1
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EP
European Patent Office
Prior art keywords
bolt
locking
lug
handle
control
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Active
Application number
EP05290433A
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German (de)
English (en)
French (fr)
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EP1568301A1 (fr
Inventor
Eric Laurent Baraille
Daniel Jean-Marie Anota
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SEB SA
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SEB SA
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/09—Safety devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/0804—Locking devices
    • A47J27/0806—Locking devices of the bayonet-type

Definitions

  • the present invention relates to the general technical field of domestic appliances for cooking food under pressure comprising a tank and a lid to be locked on the tank to form a substantially sealed cooking chamber, said apparatus being intended to ensure cooking under vapor pressure of the food contained in the tank.
  • Pressure cookers domestic appliances for cooking food under pressure are also known as "pressure cookers".
  • Known pressure cookers may include different types of lid locking systems on the tank.
  • the present invention relates more specifically to bayonet systems, whose technical concept is widely used.
  • the mechanical connection between the tank and the lid is achieved by means of corresponding ramps arranged respectively on the tank and the lid so that when the apparatus is locked, said ramps cooperate together to contain the force resulting from the pressure in the enclosure of the pressure cooker.
  • Closing and opening operations of the apparatus are performed by rotation of the lid relative to the tank, which respectively allows the engagement or disengagement of the tank ramps by the cover ramps.
  • the apparatus has handles attached to the tank and the lid.
  • the apparatus may thus comprise a bowl handle and a lid handle, the latter being capable of being in various forms, thus forming short handles, or even long handles. It is also possible to complete the short handles by a central handle arranged on the lid.
  • a lock for example integrated in one of the aforementioned handles, and arranged so that when the device is under pressure, it is unable to rotate the lid relative to the tank.
  • pressure cookers whose lid is equipped with a safety valve, capable of occupying a high closing position, in which the valve seals the enclosure, and a corresponding lower opening position, are known. at a value of the pressure inside the enclosure lower than a predetermined threshold value, in which the valve lets out the air contained in the container.
  • the valve comes, in its upper closed position, engage in a hole in a latch mounted radially movable in the lid handle. In this configuration, the latch is locked in position and prevents rotation of the lid relative to the bowl.
  • a progressive clogging of the functional part of the safety valve can occur, in particular because of the accumulation of food or lime in this area, such clogging being likely to hinder the movement of the safety valve .
  • the user can, when the safety valve is in the low position, rotate the lid handle relative to the tank handle so as to open the pressure cooker.
  • the safety valve is in the low position while ensuring a certain tightness of the enclosure. In such a case, the user is then likely to open the device while the latter is still under a certain pressure.
  • the home appliance described in FR-A-2 700 825 provides a solution to some of the disadvantages mentioned above.
  • the objects assigned to the invention therefore aim to remedy the various drawbacks listed above and to propose a new domestic appliance for cooking food under pressure provided with a locking / unlocking system guaranteeing excellent safety of use of the food. 'apparatus.
  • Another object of the invention is to propose a new domestic appliance for cooking food under pressure, the locking / unlocking system has an additional security at the opening.
  • Another object of the invention is to propose a new domestic appliance for cooking food under pressure whose locking / unlocking system is substantially automatic and easy to use and intuitive.
  • Another object of the invention is to propose a new domestic appliance for cooking food under pressure in which the rearming of the locking / unlocking system is performed automatically.
  • Another object of the invention is to propose a new domestic appliance for cooking food under pressure in which the automaticity of the control is carried out both during the closing phase and in the opening phase of the apparatus.
  • the invention relates to a domestic appliance for cooking food under pressure which comprises a tank 1 ( Figure 5) and a lid 2 ( Figure 4) intended to be reported substantially tightly on the vessel 1 to form a cooking chamber.
  • the apparatus according to the invention has a type of closure said bayonet.
  • the apparatus is provided with lid ramps 3, distributed on the periphery of the lid 2, and tank ramps 4, distributed over the periphery of the tank edge 5.
  • lid ramps 3 distributed on the periphery of the lid 2
  • tank ramps 4 distributed over the periphery of the tank edge 5.
  • the tank 1 is provided with a bowl handle 7, and the lid 2 is provided with a lid handle 8 intended to be superposed and aligned with the handle 7 in the closed position of the device ( Figures 3, 3A, 3B).
  • Figures 3, 3A, 3B Once reported on the tank 1, the lid 2 and the lid handle 8 Associated are thus rotatable relative to the vessel 1 so as to allow the opening or closing of the device.
  • the device could also have more than two handles and this without departing from the scope of the invention.
  • the apparatus also comprises a locking / unlocking system 10 allowing on the one hand the closing and the locking of the apparatus, and on the other hand the unlocking and the opening of the latter.
  • the locking / unlocking system 10 firstly comprises a safety valve 11 mounted freely movable on the cover 2 between a leak position and a sealing position.
  • the safety valve 11 advantageously occupies a low position (FIGS. 1A and 2A) in which it allows the escape of the vapor contained in the enclosure 9 towards the outside, through an orifice 12 formed in the 2.
  • the safety valve 11 advantageously occupies a high position shown in FIG. 3A, in which the lower part of the safety valve 11 comes into sealing engagement against the edge of the orifice 12 forming sealing seat.
  • the fluids can flow freely between the chamber 9 of the apparatus and the outside.
  • the locking / unlocking system 10 also comprises a latch 13 mounted on the cover handle 8 with the possibility of radial sliding.
  • the latch 13 is advantageously mounted to elastic sliding, for example by means of a compression spring (not shown) and whose restoring force is directed along the arrow F1 ( Figure 1A) towards the center of the container.
  • the compression spring thus tends to return the latch 13 to a first stop position, which forms an internal radial return position of the latch 13.
  • the latch 13 is mounted to slide radially in the two opposite directions F1, F2 shown in Figure 1A, between two stop positions. In its first stop position, the latch 13 is arranged to allow the free movement of the safety valve 11. On the contrary, in its second stop position, the latch 13 is arranged to prohibit the passage of the valve safety 11 from its leak position (low position) to its sealing position (up position).
  • the latch 13 advantageously comprises a leg 14 extending in a direction substantially parallel to the directions F1 and F2 for moving the latch, and provided with a hole 15.
  • the central axis of the bore 15 is substantially aligned with the axis XX 'of the safety valve 11.
  • the safety valve 11 is therefore freely movable along the axis XX 'and can occupy all the possible positions between its low position and its high position according to the pressure conditions prevailing in the enclosure 9.
  • the latch 13 advantageously has at least one second abutment position limiting the displacement of said latch 13 in the centrifugal direction F2 shown in FIG. 1A.
  • This second stop position forming an outer radial abutment position, is illustrated in FIG. 2A.
  • the end portion 16 of the leg 14 is positioned, at least in part, to the right of the safety valve 11 , thus preventing the free movement of the latter.
  • the safety valve 11 is then no longer able to reach its upper sealing position and maintains a permanent communication between the enclosure 9 and the outside thus preventing the apparatus from rising in pressure if the latter is not not locked correctly.
  • the locking / unlocking system 10 also comprises locking means 20 of the lock 13 in its second stop position.
  • the locking means 20 are thus intended to maintain the latch 13 in its second stop position, and this against the restoring force exerted by the spring in the direction F1 ( Figure 4).
  • the locking means 20 advantageously comprise a locking lug 21 mounted elastically movable in a housing 22 formed in the latch 13.
  • the locking lug 21 is resiliently movably mounted by means of a compression spring 23
  • the locking pin 21 is thus slidable within the housing 22 between a rest position, in which its end portion 21C opposite the spring 23 projects outside the housing 22 (FIG. 4) and a constraint position, wherein said end portion 21C no longer projects outside said housing 22.
  • the stroke of the locking lug 21 is preferably effected in a direction substantially perpendicular to the directions F1, F2 for moving the latch 13.
  • the locking means 20 of the latch 13 also comprise a locking counter-lug 25 located on the cover handle 8 (FIG. 4).
  • the lug 21 and the counter-lug 25 are relatively mounted so as to cooperate together in a so-called armed position, in which the lug 21 is in its rest position, to block the sliding of the latch 13 against the restoring force exerted by the spring along the arrow F1, thus ensuring the maintenance of said latch 13 in its second stop position.
  • the lug 21 has a locking face 21A and an erase face 21 B inclined relative to the locking face 21A ( Figure 4).
  • the counter-lug 25 comprises a locking counter-face 25A and an erase counter-face 25B inclined relative to the locking counter-face 25A. The latch 13 is thus locked by relative engagement of the locking face 21A with the locking counter-face 25A.
  • the locking / unlocking system 10 also comprises triggering means 30 (FIG. 5) disposed on the tank handle 7 so as to actuate the locking lug 21 towards its constraint position, when the handle of FIG. cover 8 comes close to its closed position, that is to say in its alignment position with the vessel handle 7.
  • triggering means 30 FIG. 5
  • the triggering means 30 are formed by a triggering abutment 31 formed on the tank handle 7 so as to protrude and bear against the lug 21 when the lid handle 8 comes in the vicinity of its position. closing, thus forcing the lug 21 towards its constraint position in which it is substantially entirely within the housing 22.
  • the tank handle 7 comprises for this purpose a flat surface 7A, substantially horizontal when the pressure cooker is in the operating position, and the triggering abutment 31 preferably comprises an abutment face 31A substantially rising. perpendicular to the flat surface 7A ( Figure 5).
  • the triggering abutment 31, precisely the abutment face 31A, extends in a direction substantially parallel to the direction of movement of the latch 13.
  • the latch 13 comprises a control foot 17 forming the lower part of the latch.
  • the locking / unlocking system 10 comprises a notch 32 preferably U-shaped with a stop face 32A and parallel side faces 32B and 32C, provided on the bowl handle 7 (FIG. in which the control foot 17 is introduced when the latch 13 is in its first stop position ( Figure 3B).
  • the locking / unlocking system 10 also comprises secure control means at the opening, intended to prevent the opening of the device when all security conditions are not met.
  • the secure control means at the opening comprise firstly a retaining rim 33, formed by one of the lateral faces 32C bordering the notch 32 in the opening direction F3 of the apparatus, and arranged in such a manner forming a stop against the control foot 17 when the latch 13 is in its first stop position ( Figure 3B), thus preventing the relative rotation of the handles 7, 8 in the opening direction F3 of the device .
  • the retaining rim 33 thus makes it possible to prevent the output of the control foot 17 from notching the notch 32 by simple relative rotation of the handles 7, 8 and thus constitutes a blocking element in position of the lid handle 8 relative to the bowl handle 7.
  • the locking / unlocking system 10 also comprises actuating means which, in combination with the retaining rim 33, allow a secure opening of the apparatus.
  • the automatic rearming of the locking means 20 is effected by shifting, when opening, the cover handle 8 with respect to its closed position by an angle ⁇ sufficient to remove the pin 21 of the triggering means 30, precisely the abutment face 31A, thus allowing it to recover its elastic rest position in which it cooperates with the counter-lug 25, thereby blocking the latch 13 in its second stop position.
  • the retaining flange 33 extends in a direction substantially parallel to the radial direction of movement of the latch 13, that is to say in a direction substantially normal to the direction of rotation of the handles 7, 8, one by report to the other.
  • the actuating means are activatable by the user and comprise a control button 50, located on the cover handle 8 and operably connected to the latch 13 so as to allow the movement of the control foot 17 out of position. notch 32.
  • control knob 50 and the latch 13 are preferably arranged in such a way that, when the device is opened, actuation of the control knob 50 causes the latch 13 to move in a radial centrifugal direction ( arrow F2).
  • control knob 50 is integral with the lock 13.
  • the actuating means can be formed by the single control button 50, which must be moved by the user over a distance such that the corresponding stroke of the latch 13 is sufficient for it crosses the retaining rim 33 and reaches its second stop position.
  • the actuating means also comprise a control ramp 34, located on the tank handle 7.
  • the control ramp 34 is arranged and oriented so that at the opening, once the control foot 17 located out of the notch 32 and the lid handle 8 located out of its closed position, that is to say offset from the angle ⁇ relative to the bowl handle 7, the control foot 17 engages, when the control button 50 is released on said control ramp 34 and moves in a centrifugal radial direction as the relative rotation of the handles 7, 8, thus leading the latch 13 to its second stop position.
  • This embodiment of the invention thus has the advantage of allowing the user to release the control button 50 as soon as he has initiated the relative rotation of the handles 7, 8.
  • control ramp 34 preferably extends, from the retaining rim 33, in a centrifugal direction that is substantially oblique relative to the direction of movement F1 or F2 of the latch 13.
  • the length of the control ramp 34 is sufficient to firstly generate a stroke of the latch 13 sufficient for the latter to reach its second stop position, and secondly to allow resetting the locking means 20 and thus maintaining the latch 13 in this second stop position.
  • the length of the retaining flange 33 and the length of the control ramp 34 projected on the axis YY 'representing the direction of movement of the latch 13 are adapted so that their addition represents a length L which is substantially equal to the travel of the latch 13 between the first and second stop positions ( Figure 1B).
  • the user In order to use the domestic appliance for cooking food under pressure according to the invention, the user begins by resting the lid 2 on the tank 1 so that the handles 7, 8 are substantially displaced by one compared to the other and not superimposed.
  • the latch 13 occupies its second stop position, illustrated in FIG. 4, and the safety valve 11 is not free to move and come to the upper sealing position.
  • the safety valve 11 In this pre-closing position, the safety valve 11 is still unable to move towards its upper sealing position, because of the interposition of the end portion 16 of the jamb 14. Thus, in this configuration imperfect lock of the device, the enclosure 9 can not increase pressure, thus ensuring the safety of the user.
  • the handles 7, 8 rotate between the configuration shown in FIG. 2 and the configuration shown in FIGS. 1, 1A and 1B, the lug 21 is progressively actuated by the triggering abutment 31 and pushes inside the housing 22 against the spring 23 until said lug 21 disengages the counter-lug 25.
  • the latch 13 is released and capable of occupying its first stop position illustrated in FIG. 3B, in which the control foot 17 advantageously bears against the stop face 32A of the notch 32
  • the bore 15 is aligned with the axis XX 'of the safety valve 11, thus allowing the free movement of the latter to its position d sealing.
  • the progressive rise of the pressure inside the chamber 9 causes the safety valve 11 to move towards its upper sealing position illustrated in FIG. 3A.
  • the cooking appliance according to the invention is likely to increase in pressure only from the moment the appliance is completely closed and locked.
  • the heating source is extinguished and the pressure inside the chamber 9 decreases.
  • a threshold value for example of the order of 0.5 kPa
  • the safety valve 11 can return to its low position of leakage. The latch 13 is then no longer locked by the safety valve 11, and is again likely to move.
  • the configuration of the locking / unlocking system 10 according to the invention is then similar to that shown in FIG. 3B, the only difference being that the safety valve 11 is in the low position.
  • the control foot 17 is, as shown in FIG. 3B, engaged within the notch 32, so that the opening of the apparatus first requires an actuation of the control knob 50 by the user.
  • the user to open the device, the user must first pull the button 50, in a centrifugal radial direction F2, so as to get the control foot 17 out of said notch 32.
  • the control knob 50 must be moved a sufficient distance to allow the control foot 17 to pass the retaining rim 33.
  • the user moves the control knob 50 a sufficient distance to allow the rearming means 20 to be rearmed.
  • the lock 13 moves over a path sufficient for the faces and counter-faces 21A lock, 25A of the lug 21 and the counter lug 25 engage mutually, thus blocking the latch 13 in its second stop position shown in Figure 4.
  • the user can then open the device by rotating handles 7, 8 relative to each other along the arrow F3 shown in Figure 1 B.
  • the displacement of the control knob 50 is sufficient to allow the latch 13, specifically the control foot 17, to disengage the notch 32 and to pass the retaining rim 33, but is insufficient to allow the rearming of the blocking means 20.
  • control ramp 34 advantageously has a length sufficient to allow this rearmament.
  • the latch 13 is then again locked in a position preventing any movement of the safety valve 11.
  • the cooking appliance in accordance with the invention thus has, in particular, the double advantage of a secured opening and an automatic reset allowing, when the appliance is opened, to configure the appliance so that it is immediately operational. and this, with a minimum number of manipulations on the part of the user.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Vending Machines For Individual Products (AREA)
  • General Preparation And Processing Of Foods (AREA)
EP05290433A 2004-02-27 2005-02-24 Appareil domestique de cuisson d'aliments sous pression muni d'un système de sécurité à l'ouverture Active EP1568301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0402052A FR2866793B1 (fr) 2004-02-27 2004-02-27 Appareil domestique de cuisson d'aliments sous pression muni d'un systeme de securite a l'ouverture
FR0402052 2004-02-27

Publications (2)

Publication Number Publication Date
EP1568301A1 EP1568301A1 (fr) 2005-08-31
EP1568301B1 true EP1568301B1 (fr) 2006-12-13

Family

ID=34746466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05290433A Active EP1568301B1 (fr) 2004-02-27 2005-02-24 Appareil domestique de cuisson d'aliments sous pression muni d'un système de sécurité à l'ouverture

Country Status (6)

Country Link
EP (1) EP1568301B1 (ja)
JP (1) JP4001603B2 (ja)
CN (1) CN100522015C (ja)
AT (1) ATE347836T1 (ja)
DE (1) DE602005000319T2 (ja)
FR (1) FR2866793B1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2910796B1 (fr) * 2006-12-28 2009-04-03 Seb Sa Appareil de cuisson sous pression de construction amelioree et procede de fabrication correspondant
DE102008053912B4 (de) * 2008-10-30 2015-11-19 Fissler Gmbh Druckgefäß
US9456713B2 (en) * 2013-05-20 2016-10-04 Dart Industries Inc. Microwave pressure cooker
FR3036938B1 (fr) * 2015-06-04 2017-07-14 Seb Sa Autocuiseur equipe d'un support et d'un couvercle mobile relativement audit support
EP3245914A1 (fr) * 2016-05-19 2017-11-22 LAGOSTINA S.p.A. Systeme d'ouverture et de fermeture pour autocuiseur
CN106721921B (zh) * 2016-12-07 2019-11-05 重庆市永川区松既调味品有限责任公司 一种高压蒸煮机的密封装置
DE102017200906A1 (de) * 2017-01-20 2018-07-26 Wmf Group Gmbh Schnellkochtopf

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484817A1 (fr) * 1979-05-11 1981-12-24 Seb Sa Dispositif de securite pour le deverrouillage du couvercle d'un recipient sous pression
FR2700825B1 (fr) * 1993-01-28 1995-04-14 Seb Sa Dispositif de commande automatique d'une soupape à limitation de flux.
AU2001248721A1 (en) * 2000-04-07 2001-10-23 Jian, Wei Wen Pressure cooker

Also Published As

Publication number Publication date
CN1650786A (zh) 2005-08-10
EP1568301A1 (fr) 2005-08-31
FR2866793B1 (fr) 2006-12-29
JP2005237974A (ja) 2005-09-08
CN100522015C (zh) 2009-08-05
FR2866793A1 (fr) 2005-09-02
ATE347836T1 (de) 2007-01-15
DE602005000319D1 (de) 2007-01-25
JP4001603B2 (ja) 2007-10-31
DE602005000319T2 (de) 2007-07-19

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